Get Started

Get Started

These guides demonstrate how to get started quickly with Hazelcast IMDG and Hazelcast Jet.

Hazelcast IMDG

Learn how to store and retrieve data from a distributed key-value store using Hazelcast IMDG. In this guide you’ll learn how to:

  • Create a cluster of 3 members.
  • Start Hazelcast Management Center
  • Add data to the cluster using a sample client in the language of your choice
  • Add and remove some cluster members to demonstrate data balancing capabilities of Hazelcast

Hazelcast Jet

Learn how to build a distributed data processing pipeline in Java using Hazelcast Jet. In this guide you’ll learn how to:

  • Install Hazelcast Jet and form a cluster on your computer
  • Build a simple pipeline that receives a stream of data, does some calculations and outputs some results
  • Submit the pipeline as a job to the cluster and observe the results
  • Scale the cluster up and down while the job is still running

Hazelcast Engineering Blog

At Hazelcast we build open-source software for building distributed systems and data-intensive applications. Here we share some of the stuff we are currently building and anything else that we find interesting.


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Build Your Kubernetes Operator with the Right Tool

Rafal Leszko
by Rafal Leszko | November 23, 2020

You want to build a Kubernetes Operator for your software. Which tool to choose from? Operator SDK with Helm, Ansible, or Go? Or maybe start from scratch with Python, Java, or any other programming language? In this blog post, I discuss different approaches to writing Kubernetes Operators and list each solution’s pros and cons. All […]

Announcing the Hazelcast Heroes Program

Nicolas Frankel
by Nicolas Frankel | November 19, 2020

Hazelcast is built on open source foundations. It’s part of our DNA, and we strive to uphold open source values in our day-to-day work. This commitment allows external contributors to make Hazelcast better so that the whole community can benefit from a collective effort. No contribution is too small, but, indeed, some of our community […]

Our Journey to a High-Performance Node.js Library

by Andrey Pechkurov | November 10, 2020

As you may already know, the Hazelcast In-Memory Data Grid (IMDG) ecosystem includes a variety of clients for different languages and runtimes, which includes Node.js client library as a part of that list. You can use Hazelcast clients in various cases, including, but not limited to the following: Building a multi-layer cache for your applications […]

Hazelcast Jet 4.3 is Released!

Marko Topolnik
by Marko Topolnik | October 23, 2020

Today we’re releasing Hazelcast Jet 4.3, our fourth release of 2020! We took part in Google Summer of Code that ended just a few weeks ago, and this release already brings a production-ready piece of work by our student, Mohamed Mandouh: distributed in-memory sorting. Mohamed’s primary focus was research into the feasibility of integrating RocksDB […]

Hazelcast Node.js Client 4.0 is Released

by Andrey Pechkurov | October 01, 2020

Hazelcast Node.js client 4.0 is now available! Let’s see what are the main changes in this new release. Hazelcast Client Protocol 2.0 Node.js client now uses Hazelcast Open Binary Client Protocol 2.0, which has a number of enhancements and serialization improvements when compared with 1.x. For the end-user, it means that the client now supports […]

Hazelcast Joins Hacktoberfest

Nicolas Frankel
by Nicolas Frankel | September 30, 2020

At Hazelcast, open source is not only a business model; it’s the foundation of our company. We believe in the right of users to access, read, and improve upon our work. Because we know that it’s not easy to get started in open source in general, especially within a specific project, we participated in this […]

Migrating from Imperative to Reactive

Nicolas Frankel
by Nicolas Frankel | September 29, 2020

From Wikipedia, Reactive Programming is “a declarative programming paradigm concerned with data streams and the propagation of change.” The programming model is complex to master. It requires a lot of experience to feel comfortable with it. However, there’s no denying that it fits the cloud ecosystem perfectly. Since on-premises infrastructure is oversized, running a program […]

Google Summer of Code 2020: A Mentor’s Perspective

Nicolas Frankel
by Nicolas Frankel | September 24, 2020

Google Summer of Code (GSoC) is a summer initiative that allows students to obtain a first deep dive into Open Source projects. It has several benefits: GSoC creates bonds between students and Open Source communities. Some, but not all, students continue to contribute to the Open Source project they worked on after GSoC This initiative […]

Non-Stop Client with Near Cache

Ayberk Sorgun
by Ayberk Sorgun | September 17, 2020

Imagine a client-server system that involves reading values from a data store. In the event of a connection failure with the server, the system will not be reading values. The consequences of such an event might be quite significant, including potentially costing money for a financial institution or time for a time-critical operation. If a […]

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